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US fluid ounces to millilitres

One US fluid ounce is 29.57352956 millilitres.

1 US fluid ounce = 29.57352956 millilitres · 1 millilitre = 0.0338140227 US fluid ounces

This factor is exact, not rounded. It comes from the definition of the units rather than from a measurement, so the only limit on precision is how many digits are worth showing.

US fluid ounces to millilitres table

Common US fluid ounce values converted to millilitres
US fluid ounces (fl oz)Millilitres (ml)
129.57352956
259.14705912
388.72058869
5147.8676478
10295.7352956
20591.4705912
25739.3382391
501,478.676478
1002,957.352956
50014,786.76478
1,00029,573.52956

How the conversion works

Multiply by 29.57352956 to go from US fluid ounces to millilitres, or by 0.0338140227 to go back the other way. Both figures are exact rather than rounded: they follow from the definitions of the units, not from anybody measuring something.

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